in a rut
In a settled or established habit or course of action, especially a boring one. For example, We go to the seashore every summerwe're in a rut, or After ten years at the same job she says she's in a rut. This expression alludes to having a wheel stuck in a groove in the road. [Early 1800s]
|a gadget; dingus; thingumbob.|
|a chattering or flighty, light-headed person.|
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